CN114776022A - Fastening device for steel reinforcement cage sleeve connection and steel reinforcement cage installation method - Google Patents
Fastening device for steel reinforcement cage sleeve connection and steel reinforcement cage installation method Download PDFInfo
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- CN114776022A CN114776022A CN202210446218.4A CN202210446218A CN114776022A CN 114776022 A CN114776022 A CN 114776022A CN 202210446218 A CN202210446218 A CN 202210446218A CN 114776022 A CN114776022 A CN 114776022A
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- reinforcement cage
- steel reinforcement
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- sleeve
- lifting
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 96
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
Abstract
A fastening device for steel reinforcement cage sleeve connection and a steel reinforcement cage installation method are disclosed, the device comprises a main driving mechanism, a driven ring mechanism, a lifting mechanism and a transverse telescopic mechanism, wherein the main driving mechanism is installed on the lifting mechanism, two ends of the transverse telescopic mechanism are in transmission connection with the main driving mechanism and the driven ring mechanism respectively, and the driven ring mechanisms are distributed in the circumferential direction of the main driving mechanism. In order to achieve the purpose, the invention adopts the following technical scheme: aiming at the manual tightening mode commonly adopted in the existing steel reinforcement cage sleeve connection, the invention provides the efficient electric fastening device which can quickly tighten the sleeves of a plurality of connecting interfaces of the steel reinforcement cage at the same time, the operation is simple and safe, the construction process can be completed more quickly, the labor input is reduced, and the engineering quality is improved.
Description
Technical Field
The invention relates to the technical field of steel reinforcement cage sleeve connection construction, in particular to a fastening device for steel reinforcement cage sleeve connection and a steel reinforcement cage installation method, which are mainly applied to steel reinforcement cage installation of pile foundation hole pits.
Background
With the development of the building industry, high-rise buildings and large-span buildings are increased day by day, and the production of reinforcing steel bars is developed towards the direction of large diameter and high strength. Among various steel bar connection methods, mechanical connection is rapidly developed with the advantages of energy saving, material saving, stable quality, strong construction adaptability and the like. In particular, the rolling straight thread reinforcing steel bar connecting technology has become the main form of mechanical connection of reinforcing steel bars. The technology processes the end of the ribbed steel bar into straight threads by rolling, and screws two wire ends of the connected steel bar into the steel bar sleeve, thereby realizing the connection of the steel bar.
The reinforcement cage needs to be manufactured by using a plurality of reinforcing steel bars with end parts processed by threads and stirrups, as is well known, the length of a longitudinal rib of the reinforcement cage is designed by adding the pile length and the anchoring length of a pile head, generally, the pile length is dozens of meters frequently, so the reinforcement cage needs to be divided into a plurality of sections for multi-section connection. The joint of each segment has a plurality of joints, and if the sleeve is screwed by manpower, the cost, the quality and the efficiency are reduced, so that the screwing efficiency of the steel bar sleeve needs to be improved in an automatic or semi-automatic mode.
Disclosure of Invention
The invention aims to provide a fastening device for steel reinforcement cage sleeve connection and a steel reinforcement cage installation method, aiming at the manual tightening mode commonly adopted by the steel reinforcement cage sleeve connection at present, the invention provides an efficient electric fastening device which can quickly tighten sleeves of a plurality of connection interfaces of a steel reinforcement cage, is simple and safe to operate, can more quickly finish the construction process, reduces the labor input and improves the engineering quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fastener for steel reinforcement cage muffjoint, includes main actuating mechanism, driven lasso mechanism, elevating system, horizontal telescopic machanism, main actuating mechanism installs on elevating system, horizontal telescopic machanism's both ends are connected with main actuating mechanism and driven lasso mechanism transmission respectively, driven lasso mechanism is a plurality of, distributes in main actuating mechanism's circumference, and during the use, by horizontal telescopic machanism with driven lasso mechanism and steel reinforcement cage sleeve top tight, by the rotation of main actuating mechanism drive driven lasso mechanism, through the frictional force drive sleeve rotation between driven lasso mechanism and the steel reinforcement cage sleeve, it is fixed that messenger's upper and lower layer steel reinforcement cage passes through muffjoint.
The main driving mechanism comprises a motor, a coupler and a driving gear, the motor spindle is connected with the coupler, and the coupler is connected with the driving gear in a key mode.
The transverse telescopic mechanism comprises a pinion, a short gear rod and an adjusting rod, the short gear rod is sleeved at two ends of the adjusting rod, a plurality of adjusting holes are formed in the adjusting rod, the short gear rod is positioned with the adjusting holes through pins or screws, and the end of the short gear rod is connected with the pinion.
The driven ferrule mechanism comprises a driven gear, a key shaft, a wheel disc and a flexible ferrule, wherein the flexible ferrule is arranged on the outermost ring of the wheel disc, and the driven gear and the wheel disc are in transmission connection through the same key shaft.
The wheel disc is provided with a hollow pipe for supporting the driven gear.
Elevating system includes opening box, telescopic leg, pneumatic or hydraulic pressure lift stabilizer blade, a plurality of telescopic leg is at the circumference evenly distributed of opening box, telescopic leg is the landing leg of the different thicknesses of a plurality of festivals and takes out the formula of inserting to connect, and telescopic leg is the formula of bending landing leg for a section of terminal landing leg, pneumatic or hydraulic pressure lift stabilizer blade is connected to the formula of bending landing leg, main actuating mechanism installs the upper end at the opening box.
The lifting device is characterized by further comprising a lifting cap, the lifting cap is fixedly connected with the lifting mechanism, and a lifting ring is arranged at the upper end of the lifting cap.
A method of installing a reinforcement cage using a fastener for a reinforcement cage sleeve connection, comprising the steps of:
1) lowering a first section of steel reinforcement cage down by using a crane until the upper end of the steel reinforcement cage is above the orifice of the foundation pile and is 0.8-1.2 m away from the orifice of the foundation pile, fixing the first section of steel reinforcement cage by using a carrying pole, removing a lifting hook, hoisting a fastening device to the central position of the steel reinforcement cage by using another crane, placing a bending type supporting leg of a lifting mechanism on the ground outside the orifice of the foundation pile, manually screwing a sleeve for connection into each interface of the steel reinforcement cage, and screwing 2-3 wires for preliminary fixing;
2) the joint of the reinforcement cage is divided into two horizontal layers which are arranged in a vertically staggered manner, the longitudinal position of the driven ferrule mechanism is aligned to the first horizontal layer, the transverse telescopic mechanism is adjusted to enable the flexible ferrule on the wheel disc of the driven ferrule mechanism to tightly support the sleeve, the motor is started, the driven ferrule mechanism is driven to rotate through the motor, the flexible ferrule utilizes friction force to screw the sleeve, and the sleeve is screwed to the tail end of the reinforcement thread;
3) adjusting the driven ferrule mechanism to a sleeve at another horizontal layer through the lifting mechanism, and repeating the operation of the step 2);
4) the crane is lowered down to butt joint the second layer of reinforcement cage, the steel bar at the tail end of the reinforcement cage is aligned with the interface of the sleeve on the lower layer of reinforcement cage manually, the motor is started to rotate reversely, the sleeve rotates reversely until the internal thread of the sleeve is screwed into half of the upper steel bar thread,
5) adjusting the driven ferrule mechanism to the position of the sleeve on the other horizontal layer through a lifting mechanism, repeating the operation of the step 4), and screwing all the sleeves on the horizontal layer into the upper reinforcement cage;
6) and hoisting the fastening device by using another crane, withdrawing the telescopic supporting legs of the lifting mechanism, removing the carrying pole, enabling the reinforcement cage to slowly sink under the action of the crane until the upper end of the reinforcement cage is above the hole opening of the foundation pile and is 0.8-1.2 m away from the hole opening of the foundation pile, inserting the carrying pole to fix the reinforcement cage, placing the fastening device, and repeating the steps 1) -5) until the last reinforcement cage is finished.
Compared with the prior art, the invention has the beneficial effects that:
the muffjoint technology of traditional steel reinforcement cage adopts artificial mode to go on, for guaranteeing efficiency, often needs 4 ~ 6 people to operate, leads to the human cost too high, and the quality is difficult to control. The invention adopts a direct current motor to drive a driving gear to work, finally transmits force to a tail end wheel disc through a gear transmission system, drives a sleeve to work through the pre-tightening friction force of a wheel disc ferrule, and can carry out a series of operations such as forward rotation, reverse rotation, speed regulation and the like through an external operating button by an electric fastening device. The invention provides an electric control construction tool for civil engineering construction, and a plurality of mould shells for fixing can be additionally arranged on the tool subsequently, so that the tool not only improves the mechanization degree of engineering construction, but also has simple and reliable structure, can greatly reduce the labor cost, quickens the sleeve connection efficiency and improves the engineering quality. Provides a new idea for the pile foundation construction technology and has wide market prospect.
Drawings
FIG. 1 is a schematic of the overall resulting internal connection structure of the present invention;
FIG. 2 is a schematic view of a lift cap construction;
FIG. 3 is a schematic view of the transmission connection of the main driving mechanism, the transverse telescoping mechanism and the driven ferrule mechanism;
FIG. 4 is a schematic view of the coupling construction;
FIG. 5 is a schematic view of the structure of the lateral telescoping mechanism;
FIG. 6 is a schematic view of a drive/driven gear configuration;
FIG. 7 is a key shaft structure diagram;
FIG. 8 is a schematic illustration of a wheel disc construction;
FIG. 9 is a schematic view of the lifting mechanism and the pulling cap;
FIG. 10 is a schematic view of the connection structure of the split box and the first section of telescopic legs;
FIG. 11 is a schematic view of a second section of telescoping leg;
FIG. 12 is a schematic structural view of an angled leg and a pneumatic or hydraulic lifting foot;
FIG. 13 is a schematic view of the driven ferrule mechanism in operation;
FIG. 14 is a schematic view of a lowered first section of the rebar cage;
FIG. 15 is a schematic view of the leading section of the reinforcement cage threaded into the sleeve;
FIG. 16 is a schematic view of the electrical fastener engaging a reinforcement cage;
FIG. 17 is a schematic view of the reinforcement cage after being threaded into the sleeve;
FIG. 18 is a schematic view of the device of the present invention with an external support housing attached;
fig. 19 is an exploded view of the main drive mechanism housing.
In the figure: 1. the device comprises a lifting cap, 2, a transverse telescopic mechanism, 2-1 pinions, 2-2 pinion rods, 2-3 adjusting rods, 2-4 screws, 3, a driven ferrule mechanism, 3-1 driven gears, 3-2 key shafts, 3-3 wheel discs, 3-4 flexible ferrules, 3-5 hollow tubes, 4, a driving mechanism, 4-1 couplers, 5 lifting mechanisms, 5-1 opening boxes, 5-2 first supporting legs, 5-3 second supporting legs, 5-4 bent supporting legs, 5-5 pneumatic or hydraulic lifting supporting legs, 6 sleeves, 7 reinforcing steel bars, 8 wheel disc upper shells, 9 wheel disc lower shells, 10 lower connecting ribs, 11 lower sealing covers, 12 lower protective cylinders, 13 wheel disc shells, 14 upper connecting ribs and 15 lower sealing rings.
Detailed Description
The following further describes embodiments of the present invention in conjunction with the attached figures:
referring to fig. 1, 3 and 4, the fastening device for the sleeve connection of the reinforcement cage comprises a main driving mechanism 4, a driven ferrule mechanism 3, a lifting mechanism 5 and a transverse telescoping mechanism 2, wherein the main driving mechanism 4 is installed on the lifting mechanism 5, two ends of the transverse telescoping mechanism 2 are respectively in transmission connection with the main driving mechanism 4 and the driven ferrule mechanism 3, and a plurality of driven ferrule mechanisms 3 are distributed in the circumferential direction of the main driving mechanism 4; see fig. 13, during the use, by horizontal telescopic machanism 2 with driven lasso mechanism 3 and steel reinforcement cage sleeve 6 top tight, by the rotatory driven lasso mechanism 3 of main actuating mechanism 4 drive, drive sleeve 6 through the frictional force between driven lasso mechanism 3 and the steel reinforcement cage sleeve 6 and rotate, make upper and lower layer steel reinforcement cage pass through sleeve 6 and connect fixedly.
The main driving mechanism 4 comprises a motor, a coupler 4-1 and a driving gear, a main shaft of the motor is connected with the coupler 4-1, and the coupler is connected with the driving gear in a key mode.
Referring to fig. 5, the transverse telescopic mechanism 2 comprises a pinion 2-1, a short gear rod 2-2 and an adjusting rod 2-3, the short gear rod 2-2 is sleeved at two ends of the adjusting rod 2-3, a plurality of adjusting holes (threaded holes) are formed in the adjusting rod 2-3, the short gear rod 2-2 is positioned with the adjusting holes through pins or screws 2-4, and the end of the short gear rod 2-2 is connected with the pinion 2-1.
Referring to fig. 3, 6-8, the driven ferrule mechanism 3 comprises a driven gear 3-1, a key shaft 3-2, a wheel disc 3-3 and a flexible ferrule 3-4, the flexible ferrule 3-4 is arranged at the outermost ring of the wheel disc 3-3, and the driven gear 3-1 and the wheel disc 3-3 are in transmission connection through the same key shaft 3-2. The driven gear 3-1 is in accordance with the driving gear structure, see fig. 6.
The wheel disc 3-3 is provided with a hollow pipe 3-5 for supporting the driven gear 3-1.
Referring to fig. 1, 9-12, the lifting mechanism 5 comprises an opening box 5-1, a plurality of telescopic supporting legs and pneumatic or hydraulic lifting supporting legs 5-5, the telescopic supporting legs are uniformly distributed in the circumferential direction of the opening box 5-1 and are connected in a plugging manner by a plurality of sections of supporting legs with different thicknesses, the supporting leg at the tail end of each telescopic supporting leg is a bent supporting leg 5-4, the bent supporting leg 5-4 is connected with the pneumatic or hydraulic lifting supporting leg 5-5, and the main driving mechanism 4 is installed at the upper end of the opening box 5-1.
The lifting device also comprises a lifting cap 1 as shown in the figures 1 and 2, wherein the lifting cap 1 is fixedly connected with a lifting mechanism 5, and a lifting ring is arranged at the upper end of the lifting cap 1.
Referring to fig. 14-17, a method of installing a reinforcement cage using a fastening device for a reinforcement cage sleeve connection, comprising the steps of:
1) the process needs two cranes to be matched. A crane is used for lowering a first section of reinforcement cage by adopting a balance lifting appliance, the first section of reinforcement cage is lowered to a position which is above a hole opening of a foundation pile and is 0.8-1.2 m away from the hole opening of the foundation pile, then center alignment is carried out, after a first section of reinforcement cage is fixed by a carrying pole, a lifting hook is removed, a fastening device is lifted to the center position of the reinforcement cage by another crane, four telescopic supporting legs of a lifting mechanism 5 are pulled, so that bent supporting legs 5-4 of the lifting mechanism 5 are placed on the ground outside the hole opening of the foundation pile, the center position is adjusted again, a hook of the crane is removed, a sleeve 6 for connection is manually screwed into each interface of the reinforcement cage by one worker, and only 2-3 wires need to be screwed for primary fixing;
2) the joint of the steel reinforcement cage is divided into two horizontal layers, the two horizontal layers are arranged in a vertically staggered manner, the longitudinal position of the driven ferrule mechanism 3 is aligned to the first horizontal layer, the transverse telescopic mechanism 2 is adjusted to enable the flexible ferrules 3-4 on the wheel discs 3-3 of the driven ferrule mechanism 3 to tightly prop against the sleeve 6, after good contact is achieved, a worker starts the motor aside, the motor is firstly enabled to rotate forwards (the direction that the sleeve can be screwed into the steel reinforcement thread downwards), the driven ferrule mechanism 3 is driven to rotate through the motor, and the flexible ferrules 3-4 utilize friction force to screw the sleeve 6 in a screwing manner, so that the sleeve 6 is rotated to the tail end of the steel reinforcement thread; and (3) rotating the transverse telescopic mechanism 2, adjusting the circumferential position of the driven ferrule mechanism 3, and screwing the steel bar sleeves 6 at other circumferential positions by adopting the method until all the sleeves 6 at the layer are screwed.
3) Adjusting the driven ferrule mechanism 3 to a sleeve at another horizontal layer through the lifting mechanism 5, repeating the operation of the step 2), and screwing all the sleeves 6 at the horizontal position into place;
4) the crane is transferred and is docked second floor steel reinforcement cage, by a workman manual good, well the terminal reinforcing bar of steel reinforcement cage and the telescopic interface on the steel reinforcement cage of lower floor, the workman of handheld motor button carries out the inching earlier at this moment and tries on the right side, confirm to carry out motor reversal operation after errorless, the starter motor reversal, make 6 antiport of sleeve, stop when the internal thread of sleeve 6 twists 7 screw threads of top reinforcing bar half, rotate horizontal telescopic machanism 2, the same operation twists in 7 screw threads of top reinforcing bar with the steel reinforcement sleeve 6 of other circumferential direction positions, so on and so on, until the sleeve of this horizontal layer is whole to twist in.
5) Adjusting the driven ferrule mechanism 3 to the position of the sleeve on the other horizontal layer through the lifting mechanism 5, repeating the operation of the step 4), and screwing all the sleeves on the horizontal layer into the upper reinforcement cage;
6) and (4) hoisting the fastening device by using another crane, withdrawing the telescopic support legs of the lifting mechanism 5, removing the carrying pole, slowly sinking the reinforcement cage under the action of the crane until the upper end of the reinforcement cage is above the hole opening of the foundation pile and is 0.8-1.2 m away from the hole opening of the foundation pile, inserting the carrying pole to fix the reinforcement cage, removing the lifting hook, placing the fastening device, and repeating the steps 1-5) until the last section of reinforcement cage is finished.
The motor adopts a direct current motor, a main shaft of the motor is connected with a coupling 4-1, and a shaft key of the coupling 4-1 is in key connection with a key groove in the driving gear. The driving gear is meshed with a pinion 2-1 at one end of the transverse telescopic mechanism 2, a pinion 2-1 at the other end of the transverse telescopic mechanism 2 is meshed with a driven gear, transmission connection of the driving gear and the driven gear 3-1 is achieved, the driving gear, the pinion 2-1 and the driven gear 3-1 are required to be helical gears which are good in meshing performance and compact in structure, and the gear modulus and the pressure angle are the same. The driven gear 3-1 is in key connection with a wheel disc 3-3 on the lower portion of the driven gear through a key shaft 3-2, a replaceable flexible ferrule 3-4 is sleeved on the outer ring of the wheel disc 3-3, gears are preset in the transverse telescopic mechanism 2 according to reinforcement cages with different diameters, the flexible ferrule 3-4 on the wheel disc 3-3 on the outermost ring is required to be in close contact with a reinforcement sleeve 6 through adjustment of the transverse telescopic mechanism 2, the tightness degree is similar to slight interference fit between hole shafts, and the interference magnitude is required to be 0-0.05 mm. So that the flexible ferrules 3-4 and the sleeve 6 can be driven by friction force, and the steel bar 7 is connected without influencing the lowering operation of the steel bar cage.
The transverse telescopic mechanism 2 is formed by combining two hollow short gear rods 2-2 and an adjusting rod 2-3 which is additionally arranged in the middle and is provided with a prefabricated threaded hole with a fixed interval, and two prefabricated holes are processed at the end parts of the two short gear rods 2-2 so as to be in screw connection with the adjusting rod 2-3 with the prefabricated threaded hole in the middle through screws 2-4.
The center of the wheel disc 3-3 is provided with a center hole and a key hole which can be matched with the key shaft 3-2, a section of hollow tube 3-5 with certain thickness is welded on the outer edge of the key hole, and the hollow tube 3-5 is used for supporting the driven gear 3-1.
The lifting mechanism 5 consists of an open box 5-1, a first section of supporting leg 5-2, a second section of supporting leg 5-3, a third section of bending type supporting leg 5-4 and a pneumatic or hydraulic lifting supporting leg 5-5 which are welded on four vertical surfaces of the open box 5-1, each section of supporting leg is of a hollow rectangular structure, an opening baffle plate is welded at the tail end of each section of supporting leg, the size of the outer end of the baffle plate is equal to the outer size of the supporting leg, and the opening size of the baffle plate is slightly smaller than the inner size of the hollow rectangular structure. One end of the second section of the supporting leg 5-3 close to the inner side is welded with a solid plate, and the outer dimension of the solid plate is equal to the inner dimension of the upper section of the supporting leg. The third section of bent supporting leg 5-4 is of two vertically crossed hollow rectangular structures, one end of the third section of bent supporting leg close to the inner side is welded with a solid plate, the outer size of the solid plate is equal to the inner size of the second section of supporting leg 5-3, and a round hole is processed at the bent part of the third section of bent supporting leg 5-4 and used for mounting a pneumatic or hydraulic supporting leg 5-5. The tail end of the pneumatic or hydraulic support leg 5-5 is welded with a round baffle plate as a bottom foot. The second section of the supporting leg 5-3 and the third section of the bending type supporting leg 5-4 can perform drawing action in a hollow nest of one section of the supporting leg and can be clamped after the end baffles are contacted with each other.
The lifting cap 1 is designed for lifting and lowering the whole fastening device by a crane hook, the lifting cap 1 is a disc, a handle is welded at the top of the disc, four steel bars are welded at the bottom of the disc, diagonal lines of the steel bars form an included angle of 90 degrees and are symmetrically distributed at the edge of the disc, and the four steel bars avoid each transverse telescopic mechanism to enable the lower part of the four steel bars to be welded and fixed with the upper part of the structure of the open box 5-1.
Referring to fig. 18 and 19, an outer sleeve fixing structure is arranged outside the driving mechanism 4 and comprises a lower sealing cover 11, a lower protective sleeve 12, a driving gear shell 13 and a lower sealing ring 15, the lower protective sleeve 12 and the lower sealing ring 15 are welded and fixed and are welded and connected with a motor shell, a coupling 4-1 is arranged in the lower outer protective sleeve 12, the lower sealing cover 11 and the driving gear shell 13 are welded and fixed and can rotate relative to the lower protective sleeve 12, the transverse telescopic mechanism 2 penetrates through a hole in the side wall of the driving gear shell 13, and a bearing is arranged at the position of relative rotation.
The wheel disc upper outer shell 8 covers the upper end of the wheel disc and is fixedly connected with the driving gear shell 13 through the upper connecting rib 14, a bearing is arranged at the joint of the transverse telescopic mechanism 2 and the wheel disc upper outer shell 8, and the wheel disc 3-3 and the wheel disc upper outer shell 8 can rotate relatively. The lower wheel disc outer shell 9 is used for supporting the wheel disc 3-3 at the lower end of the wheel disc 3-3, the lower wheel disc outer shell 9 is fixedly connected with the lower sealing cover 11 through the lower connecting rib 10, and a bearing is arranged between the wheel disc 3-3 and the lower wheel disc outer shell 9.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A
In this embodiment, each part of the lifting mechanism is formed by welding 5mm aluminum alloy plates, the outer dimension of the upper plate of the open box 5-1 is 600mm × 600mm, the outer dimensions of the four side vertical plates are 230mm × 600mm, the motor is a direct current motor, the intersection point of diagonal lines of the open box 5-1 is taken as a central point, the central line of the motor is aligned, and the motor is welded on the open box 5-1 along four side lines of the motor. The outer dimension of the first section of the supporting leg 5-2 is 150mm multiplied by 80mm multiplied by 40mm, and the four first sections of the supporting leg 5-2 are welded at the central positions of the four vertical panels of the open box 5-1 respectively after being manufactured. An opening baffle is welded at the end part closing part of the first section of the supporting leg 5-2, the size of the outer ring of the baffle is 150mm multiplied by 80mm as that of the first section of the supporting leg 5-2, and the size of the inner ring is 60mm multiplied by 120 mm. The outer dimension of the second section of the supporting leg 5-3 is 120mm multiplied by 60mm multiplied by 400mm, a baffle plate with the dimension of 140mm multiplied by 70mm is welded at the inner side of the second section of the supporting leg 5-3, and an opening plate with the outer dimension of 120mm multiplied by 60mm and the inner dimension of 100mm multiplied by 40mm is welded at the outlet near the end part. The third section of supporting leg is formed by welding two rectangular frames with the outer dimensions of 195mm multiplied by 50mm multiplied by 110mm and 90mm multiplied by 60mm multiplied by 110mm, special treatment needs to be carried out on a welding interface part to ensure that the welding interface part can ensure the outer contour dimension to carry out welding, and a hole with the diameter of 30mm is drilled on a central line 30mm away from the outer end of the third section of supporting leg and is used for placing a pneumatic or hydraulic lifting supporting leg 5-5. After a corresponding pneumatic or hydraulic lifting device is selected and purchased, a circular plate with the diameter of 150mm is welded on the bottom surface of the lifting device to serve as a bottom foot. A disc with the diameter of 400mm multiplied by 10mm is manufactured, two central lines are drawn, an arc-shaped handle is welded at the center of the top of the disc, four reinforcing steel bars with the diameter of 10mm are welded at the bottom of the disc, the diagonal lines of the reinforcing steel bars form an included angle of 90 degrees and are symmetrically distributed at the edge of the disc, and the four reinforcing steel bars are ensured to avoid each transverse telescopic mechanism and have a certain included angle, so that the lower portion of the reinforcing steel bar is welded and fixed with the upper portion of the open box 5-1 structure. Manufacturing a plurality of wheel discs 3-3 with the diameter of 300mm, wherein the thickness of the edge of each wheel disc is 20mm, processing a center hole with the diameter of 45mm and a keyhole with the diameter of 10mm multiplied by 10mm at the center of each wheel disc, manufacturing a hollow tube 3-5 with the outer diameter of 100mm, the wall thickness of 20mm and the height of 30mm, welding the centers of the hollow tubes 3-5 on the surface of one side of each wheel disc 3-3 symmetrically, and coating a certain amount of lubricating oil on the other side of each hollow tube 3-5. A flexible ferrule 3-4 with the inner diameter of 300mm is selected or manufactured and sleeved on the outer edge of the wheel disc 3-3. A plurality of shafts with the diameter of 45mm and the length of 200mm are manufactured, a key with the size of 10mm multiplied by 10mm and the full length is processed on the outer surface of each shaft, and the key shaft 3-2 is in interference fit with the wheel disc 3-3. Manufacturing a plurality of adjusting rods 2-3 with the diameter of 27mm and the length of 300mm, processing 5 threaded holes with the diameter of 10mm on the adjusting rods, wherein the distance from the first threaded hole to one end side of the connecting rod is 50mm, and the distance between the holes is 50 mm. The screw is required to have a nut diameter of 15mm and a thickness of 5mm, and a thread diameter of 10mm and a length of 30 mm. Other parts such as a coupler, a driving/driven gear and a short gear rod are all purchased.
Claims (8)
1. The utility model provides a fastener for steel reinforcement cage muffjoint, its characterized in that, includes main actuating mechanism, driven lasso mechanism, elevating system, horizontal telescopic machanism, main actuating mechanism installs on elevating system, horizontal telescopic machanism's both ends are connected with main actuating mechanism and driven lasso mechanism transmission respectively, driven lasso mechanism is a plurality of, distributes in main actuating mechanism's circumference, and during the use, by horizontal telescopic machanism with driven lasso mechanism and steel reinforcement cage sleeve top tight, it is rotatory to be driven lasso mechanism by main actuating mechanism drive, drives the muffjoint through the frictional force between driven lasso mechanism and the steel reinforcement cage sleeve and rotates, makes upper and lower layer steel reinforcement cage pass through muffjoint fixed.
2. The fastening device for the steel reinforcement cage sleeve connection according to claim 1, wherein the main driving mechanism comprises a motor, a coupler and a driving gear, a main shaft of the motor is connected with the coupler, and the coupler is in key connection with the driving gear.
3. The fastening device for the sleeve connection of the steel reinforcement cage according to claim 1, wherein the transverse telescoping mechanism comprises a pinion, a short gear rod and an adjusting rod, the short gear rod is sleeved at two ends of the adjusting rod, the adjusting rod is provided with a plurality of adjusting holes, the short gear rod is positioned with the adjusting holes through pins or screws, and the end of the short gear rod is connected with the pinion.
4. The fastening device for the steel reinforcement cage sleeve connection of claim 1, wherein the driven ferrule mechanism comprises a driven gear, a key shaft, a wheel disc and a flexible ferrule, the flexible ferrule is arranged on the outermost circle of the wheel disc, and the driven gear and the wheel disc are in transmission connection through the same key shaft.
5. The fastening device for the muff coupling of the steel reinforcement cage according to claim 4, wherein the wheel disc is provided with a hollow tube for supporting the driven gear.
6. The fastening device for the muff coupling of the steel reinforcement cage according to claim 1, wherein the lifting mechanism comprises an open box, a plurality of telescopic legs, and a pneumatic or hydraulic lifting support leg, wherein the plurality of telescopic legs are uniformly distributed in the circumferential direction of the open box, the telescopic legs are connected by a plurality of telescopic legs of different thicknesses in a pull-plug manner, the endmost one of the telescopic legs is a bending type leg, the bending type leg is connected with the pneumatic or hydraulic lifting support leg, and the main driving mechanism is installed at the upper end of the open box.
7. The fastening device for the steel reinforcement cage sleeve connection according to claim 1, further comprising a lifting cap, wherein the lifting cap is fixedly connected with the lifting mechanism, and a lifting ring is arranged at the upper end of the lifting cap.
8. A method of installing a reinforcement cage using the fastening device for reinforcement cage muff coupling of claim 1, comprising the steps of:
1) a first section of steel reinforcement cage is lowered down by a crane until the upper end of the steel reinforcement cage is above an orifice of a foundation pile and is 0.8-1.2 m away from the orifice of the foundation pile, after the first section of steel reinforcement cage is fixed by a carrying pole, the lifting hook is removed, the fastening device is lifted to the central position of the steel reinforcement cage by another crane, a bending type supporting leg of the lifting mechanism is placed on the ground outside the orifice of the foundation pile, sleeves for connection are manually screwed into the joints of the steel reinforcement cage, and 2-3 wires are screwed for preliminary fixing;
2) the joint of the reinforcement cage is divided into two horizontal layers which are arranged in a vertically staggered manner, the longitudinal position of the driven ferrule mechanism is aligned to the first horizontal layer, the transverse telescopic mechanism is adjusted to enable the flexible ferrule on the wheel disc of the driven ferrule mechanism to tightly support the sleeve, the motor is started, the driven ferrule mechanism is driven to rotate through the motor, the flexible ferrule utilizes friction force to screw the sleeve, and the sleeve is screwed to the tail end of the reinforcement thread;
3) adjusting the driven ferrule mechanism to a sleeve at another horizontal layer through the lifting mechanism, and repeating the operation of the step 2);
4) a crane is lowered down to butt joint a second layer of reinforcement cage, the steel bar at the tail end of the reinforcement cage is aligned with a connector of a sleeve on the lower layer of reinforcement cage manually, a motor is started to rotate reversely, the sleeve rotates reversely, and the steel bar is stopped until the internal thread of the sleeve is screwed into a half of the upper steel bar thread;
5) adjusting the driven ferrule mechanism to the position of the sleeve on the other horizontal layer through a lifting mechanism, repeating the operation of the step 4), and screwing all the sleeves on the horizontal layer into the upper reinforcement cage;
6) and (3) hoisting the fastening device by using another crane, withdrawing the telescopic support legs of the lifting mechanism, removing the carrying pole, sinking the reinforcement cage under the action of the crane until the upper end of the reinforcement cage is above the hole opening of the foundation pile and is 0.8-1.2 m away from the hole opening of the foundation pile, inserting the carrying pole to fix the reinforcement cage, placing the fastening device, and repeating the steps 1-5) until the last section of reinforcement cage is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446218.4A CN114776022B (en) | 2022-04-26 | 2022-04-26 | Fastening device for reinforcement cage sleeve connection and reinforcement cage installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210446218.4A CN114776022B (en) | 2022-04-26 | 2022-04-26 | Fastening device for reinforcement cage sleeve connection and reinforcement cage installation method |
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| CN114776022A true CN114776022A (en) | 2022-07-22 |
| CN114776022B CN114776022B (en) | 2024-03-12 |
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| CN103362119A (en) * | 2013-06-28 | 2013-10-23 | 中建七局第二建筑有限公司 | Non-welded connection method and connection structure for major diameter reinforcing cage |
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| JP2018172868A (en) * | 2017-03-31 | 2018-11-08 | 東日本旅客鉄道株式会社 | Pile head fixing and holding structure of reinforcing bar cage |
| CN208534057U (en) * | 2018-05-16 | 2019-02-22 | 南昌大学 | A kind of filling concrete pile cages main reinforcement straight screw sleeve connection processing platform |
| CN212552434U (en) * | 2020-05-10 | 2021-02-19 | 刘爱金 | Steel reinforcement cage welding frock |
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| CN103362119A (en) * | 2013-06-28 | 2013-10-23 | 中建七局第二建筑有限公司 | Non-welded connection method and connection structure for major diameter reinforcing cage |
| CN106677165A (en) * | 2016-11-24 | 2017-05-17 | 绍兴文理学院 | Cast-in-place pile reinforcement cage connection automatic synchronous screwing device and usage method thereof |
| CN106703017A (en) * | 2016-11-24 | 2017-05-24 | 绍兴文理学院 | Tightening device for two-way threaded projecting-gear sleeve of reinforcement cage in cast-in-place pile and method of application |
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| CN114776022B (en) | 2024-03-12 |
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